Koen is a Dutch short form of Koenraad, the Dutch Conrad, which comes from the Germanic kuoni, "bold", and rat, "counsel", so it means "bold counsel" or "brave adviser". In the United States it is pronounced like Cohen, which some parents use as a respelling of the Jewish surname, while others pick it for its Dutch roots. Koen entered the top 1000 in 2022, peaked at number 606 in 2023 and ranks number 623 in 2025.